Access to clean and affordable cooking energy remains a challenge in developing regions, particularly in sub-Saharan Africa, where traditional biomass fuels are widely used and are associated with environmental and health concerns. Solar cooking provides a renewable alternative;...
Open access
Research Article10.9734/psij/2026/v30i5972
Sanda Yusuf Sadau, Ishaya Iliyasu, M. Ndawashi, M. Alpha, Sunday H. Sarki, Tina Abimbola A. & Oyadiran Wuyi Jonathan·Physical Science International Journal·2026
The total amount of a potentially toxic element in soil, on its own, provides limited information about its mobility or bioavailability. This paper re-examines the geochemical partitioning, extractability and environmental status of lead (Pb), cadmium (Cd) and zinc (Zn) in agricu...
Open access
Research Article10.9734/psij/2026/v30i5971
Low-cost acoustic monitoring can support condition-related data collection for hydropower generators where commercial instruments may be costly or difficult to deploy. This study developed an acoustic acquisition and monitoring arrangement using a KY-038 sound sensor, a parabolic...
Open access
Research Article10.9734/psij/2026/v30i5970
Aims: The study aims to synthesise phase change material (PCM) classification and building-envelope integration techniques relevant to hot, arid climates, and to carry out a comparative techno-economic and environmental assessment of three candidate PCMs (a paraffin, a hydrated s...
Open access
Research Article10.9734/psij/2026/v30i5969
Magnetohydrodynamic (MHD) nanofluids have emerged as promising working fluids for advanced thermal management systems owing to their enhanced heat transfer capability and controllable transport characteristics under external magnetic fields. This study presents an analytical inve...
Open access
Research Article10.9734/psij/2026/v30i5968
This study presents a cycle-to-date classification and geoeffectiveness analysis of the interplanetary drivers of geomagnetic storms during Solar Cycle 25 (SC25), from December 2019 to 24 June 2026. Hourly OMNI solar-wind plasma and interplanetary magnetic-field data were analyse...
Open access
Research Article10.9734/psij/2026/v30i5967
Manual operation of barriers at access points can increase operator workload and may delay vehicular movement. This study designed, constructed, and evaluated a remote-controlled gate cross bar intended to provide a low-cost wireless alternative for automated access control. The...
Open access
Research Article10.9734/psij/2026/v30i5966
Ozoemelam Onyebuchi, M. Okehie Baslem, O. Ofoegbu Christian, R. N. Abali, I. Olua Rita & C. Maduenyi Agwuncha·Physical Science International Journal·2026
This study quantifies the statistical relationships among four meteorological variables: sunshine duration, rainfall amount, rainfall rate, and relative humidity using six years of monthly observational data (2015–2020, n = 72) sourced from the Nigerian Meteorological Agency (NiM...
Open access
Research Article10.9734/psij/2026/v30i4965
Many copper alloys suffer from weaknesses in certain mechanical properties, hindering their suitability for various industrial applications. Copper powder with 4% iron nanoparticles added as a constant-ratio reinforcement material was used, along with nano-alumina at varying rein...
Open access
Research Article10.9734/psij/2026/v30i4964
The increasing deployment of mobile communication infrastructure has raised public concern regarding exposure to radiofrequency (RF) electromagnetic fields around base transceiver stations (BTSs). This study evaluated electromagnetic field exposure around a BTS in Owa-Eke, Delta...
Open access
Research Article10.9734/psij/2026/v30i4963